"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : Compatibility
Case Name   : 参数fields escaped by 'char'入参验证,部分测试点合理报错
Create At   : 2023/06/02
Owner       : n@ningyali
Description :
        1.创建表
        2.导入数据，不指定转义符,默认是双引号
        3.导入数据，参数是为多个相同的字符
        4.导入数据，参数为非单字节字符
        5.导入数据，参数与enclosed后参数相同
Expect      :
        1.成功
        2.成功
        3.成功，字符会进行"反转义"处理
        4.合理报错
        5.成功
History     :
"""
import os
import unittest

from yat.test import Node

from testcase.COMPATIBILITY.GRAMMAR.LOAD. \
    Opengauss_Compatibility_Grammar_Load_Common import LoadData
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Logger import Logger


class LoadData0054(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.common = Common()
        self.load_data = LoadData()
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.pri_user = Node('PrimaryDbUser')
        self.case_lable = 'load_data_0054'
        self.db_name = f'db_{self.case_lable}'
        self.t_name = f't_{self.case_lable}'
        self.file_path = os.path.join('/home', self.pri_user.ssh_user)
        self.cols = 'c1 varchar(11),c2 text,c3 text'

        text1 = '-----创建数据文件；expect:创建成功-----'
        self.log.info(text1)
        self.data1 = "2\t'aaa'\t12\n3\t'bbb'\t13"
        self.data2 = "2***aaa***12\n" \
                     "222\\\\\\t***'护法的'***4\\\\\\b6\n" \
                     "333***\\\\\\n***\\\\\\z\n" \
                     "111***极简***123"
        self.data3 = "333哈n哈z"
        self.data4 = "2,#tfadfr#,#t发多少#"
        res = self.load_data.create_data_file(self.pri_user, self.case_lable,
                                              self.data1, self.data2,
                                              self.data3, self.data4)
        self.assertTrue(res, '执行失败:' + text1)

        text2 = '-----创建兼容B库；expect:创建成功-----'
        self.log.info(text2)
        res = self.load_data.create_b_db(self.pri_sh, self.db_name)
        self.assertTrue(res, '执行失败:' + text2)

    def test_load(self):
        text = '--------step1：创建表；expect：建表成功--------'
        self.log.info(text)
        res = self.load_data.create_table(self.pri_sh, self.db_name,
                                          self.t_name, self.cols)
        self.assertTrue(res, '执行失败:' + text)

        text = '------step2：导入数据，不指定转义符,默认是双引号；' \
               'expect：成功------'
        self.log.info(text)
        f_path = os.path.join(self.file_path, f'{self.case_lable}_1.txt')
        sql = f'''load data infile '{f_path}' into table {self.t_name};
            select * from {self.t_name};'''
        res1 = self.pri_sh.execut_db_sql(sql, dbname=self.db_name)
        rows, _ = self.common.parse_sql_query_res(res1)
        expect = [['2', "'aaa'", '12'], ['3', "'bbb'", '13']]
        self.assertEqual(rows, expect, '执行失败:' + text)

        text = '------step3：导入数据，参数是为多个相同的字符；' \
               'expect：成功，字符会进行"反转义"处理------'
        self.log.info(text)
        f_path = os.path.join(self.file_path, f'{self.case_lable}_2.txt')
        sql = f"""truncate table {self.t_name};
            load data infile '{f_path}' into table {self.t_name}
            fields terminated by '***' enclosed by '''' escaped by '\\\\';
            select * from {self.t_name};"""
        res2 = self.pri_sh.execut_db_sql(sql, dbname=self.db_name)
        self.log.info(res2)
        rows, _ = self.common.parse_sql_query_res(res2)
        expect = [['2', 'aaa', '12'], ['222\\t', '护法的', '4\\b6'],
                  ['333', '\\n', '\\z'], ['111', '极简', '123']]
        self.assertEqual(rows, expect, '执行失败:' + text)

        text = '------step4：导入数据，参数为非单字节字符；' \
               'expect：合理报错------'
        self.log.info(text)
        f_path = os.path.join(self.file_path, f'{self.case_lable}_3.txt')
        res3 = self.load_data.load_data(self.pri_sh, self.db_name,
                                        self.t_name, f_path,
                                        into_type='',
                                        escaped_by='哈ha')
        msg = 'ERROR:  COPY escape must be a single one-byte character'
        self.assertIn(msg, res3, '执行失败' + text)

        text = '------step5：导入数据，参数与enclosed后参数相同；' \
               'expect：成功------'
        self.log.info(text)
        f_path = os.path.join(self.file_path, f'{self.case_lable}_4.txt')
        sql = f"""truncate table {self.t_name};
            load data infile '{f_path}' into table {self.t_name}
            fields terminated by ',' enclosed by '#' escaped by '#';
            select * from {self.t_name};"""
        res4 = self.pri_sh.execut_db_sql(sql, dbname=self.db_name)
        self.log.info(res4)
        rows, _ = self.common.parse_sql_query_res(res4)
        expect = [['2', 'tfadfr', 't发多少']]
        self.assertEqual(rows, expect, '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----清理环境-----')
        res = self.load_data.clear_env(self.pri_sh, self.pri_user,
                                       self.db_name,
                                       os.path.join(self.file_path,
                                                    f"{self.case_lable}*"))
        self.assertTrue(res, '执行失败:清理环境')
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
